Keeping Faith - Picoult, Jodi

When Mariah White catches her husband with another woman, her life starts to fall apart. And when her daughter, Faith, begins to confide in an imaginary friend, Mariah's own brush with insanity starts to take on a darker meaning. Then Faith appears to start performing miracles, and all at once the situation is spiralling beyond Mariah's control. Is Faith truly seeing God? Or is she just a troubled young girl seeking refuge from her parents' divorce? When it comes to matters of faith, it's hard to know who to believe...